HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS - Balance Sheet Offsetting (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Gross Amounts of Assets	$ 107,345	$ 109,118
Gross Amounts Offset in Assets	0	1,558
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0	340
Net Amount, Derivative Assets	68,364	73,318
Gross Amounts of (Liabilities)	(160,192)	(166,908)
Gross Amounts Offset in (Liabilities)	0	(1,558)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(19,008)	(2,507)
Net Amount, Derivative Liabilities	(102,203)	(128,941)
Foreign Currency Forward Contracts:
Derivative [Line Items]
Gross Amounts of Assets	7,893	1,558
Gross Amounts Offset in Assets	0	1,558
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0	0
Net Amount, Derivative Assets	1,942	549
Gross Amounts of (Liabilities)	(6,141)	(2,361)
Gross Amounts Offset in (Liabilities)	0	(1,558)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	0	0
Net Amount, Derivative Liabilities	(1,675)	(1,457)
Total-return swap
Derivative [Line Items]
Gross Amounts of Assets	4,515
Gross Amounts Offset in Assets	0
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0
Net Amount, Derivative Assets	4,515
Interest-rate swaps
Derivative [Line Items]
Gross Amounts of (Liabilities)	(4,171)	(7,900)
Gross Amounts Offset in (Liabilities)	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	0	0
Net Amount, Derivative Liabilities	(2,686)	(7,795)
Foreign currency forward contracts and Interest-rate swaps
Derivative [Line Items]
Gross Amounts of (Liabilities)	(10,312)	(10,261)
Gross Amounts Offset in (Liabilities)	0	(1,558)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	0	0
Net Amount, Derivative Liabilities	(4,361)	(9,252)
Derivative Financial Instruments, Assets
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	107,345	107,560
Gross Amounts Not Offset in Statements of Financial Condition, Assets	38,981	33,902
Derivative Financial Instruments, Assets | Foreign Currency Forward Contracts:
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	7,893	0
Gross Amounts Not Offset in Statements of Financial Condition, Assets	5,951	(549)
Derivative Financial Instruments, Assets | Total-return swap
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	4,515
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0
Derivative Financial Instruments, Liabilities
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(160,192)	(165,350)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(38,981)	(33,902)
Derivative Financial Instruments, Liabilities | Foreign Currency Forward Contracts:
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(6,141)	(803)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(4,466)	654
Derivative Financial Instruments, Liabilities | Interest-rate swaps
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(4,171)	(7,900)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(1,485)	(105)
Derivative Financial Instruments, Liabilities | Foreign currency forward contracts and Interest-rate swaps
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(10,312)	(8,703)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(5,951)	549
Oaktree Capital Group, LLC
Derivative [Line Items]
Gross Amounts of Assets	12,408
Gross Amounts Offset in Assets	0
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0
Net Amount, Derivative Assets	6,457
Oaktree Capital Group, LLC | Derivative Financial Instruments, Assets
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	12,408
Gross Amounts Not Offset in Statements of Financial Condition, Assets	5,951
Consolidated Funds
Derivative [Line Items]
Gross Amounts of Assets	94,937	107,560
Gross Amounts Offset in Assets	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0	340
Net Amount, Derivative Assets	61,907	72,769
Gross Amounts of (Liabilities)	(149,880)	(156,647)
Gross Amounts Offset in (Liabilities)	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(19,008)	(2,507)
Net Amount, Derivative Liabilities	(97,842)	(119,689)
Consolidated Funds | Foreign Currency Forward Contracts:
Derivative [Line Items]
Gross Amounts of Assets	51,765	52,663
Gross Amounts Offset in Assets	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0	0
Net Amount, Derivative Assets	20,542	18,524
Gross Amounts of (Liabilities)	(135,246)	(146,526)
Gross Amounts Offset in (Liabilities)	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(11,583)	(632)
Net Amount, Derivative Liabilities	(92,440)	(111,755)
Consolidated Funds | Total-return, credit-default and interest-rate swaps
Derivative [Line Items]
Gross Amounts of Assets	18,318	48,727
Gross Amounts Offset in Assets	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0	340
Net Amount, Derivative Assets	17,835	48,075
Gross Amounts of (Liabilities)	(7,096)	(9,561)
Gross Amounts Offset in (Liabilities)	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(4,358)	(1,828)
Net Amount, Derivative Liabilities	(2,255)	(7,421)
Consolidated Funds | Options and futures
Derivative [Line Items]
Gross Amounts of Assets	18,138	6,170
Gross Amounts Offset in Assets	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0	0
Net Amount, Derivative Assets	18,138	6,170
Gross Amounts of (Liabilities)	(6,214)	(560)
Gross Amounts Offset in (Liabilities)	0	0
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(3,067)	(47)
Net Amount, Derivative Liabilities	(3,147)	(513)
Consolidated Funds | Swaptions
Derivative [Line Items]
Gross Amounts of Assets	6,716
Gross Amounts Offset in Assets	0
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0
Net Amount, Derivative Assets	5,392
Gross Amounts of (Liabilities)	(1,324)
Gross Amounts Offset in (Liabilities)	0
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	0
Net Amount, Derivative Liabilities	0
Consolidated Funds | Derivative Financial Instruments, Assets
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	94,937	107,560
Gross Amounts Not Offset in Statements of Financial Condition, Assets	33,030	34,451
Consolidated Funds | Derivative Financial Instruments, Assets | Foreign Currency Forward Contracts:
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	51,765	52,663
Gross Amounts Not Offset in Statements of Financial Condition, Assets	31,223	34,139
Consolidated Funds | Derivative Financial Instruments, Assets | Total-return, credit-default and interest-rate swaps
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	18,318	48,727
Gross Amounts Not Offset in Statements of Financial Condition, Assets	483	312
Consolidated Funds | Derivative Financial Instruments, Assets | Options and futures
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	18,138	6,170
Gross Amounts Not Offset in Statements of Financial Condition, Assets	0	0
Consolidated Funds | Derivative Financial Instruments, Assets | Swaptions
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	6,716
Gross Amounts Not Offset in Statements of Financial Condition, Assets	1,324
Consolidated Funds | Derivative Financial Instruments, Liabilities
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(149,880)	(156,647)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(33,030)	(34,451)
Consolidated Funds | Derivative Financial Instruments, Liabilities | Foreign Currency Forward Contracts:
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(135,246)	(146,526)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(31,223)	(34,139)
Consolidated Funds | Derivative Financial Instruments, Liabilities | Total-return, credit-default and interest-rate swaps
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(7,096)	(9,561)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	(483)	(312)
Consolidated Funds | Derivative Financial Instruments, Liabilities | Options and futures
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(6,214)	(560)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	0	0
Consolidated Funds | Derivative Financial Instruments, Liabilities | Swaptions
Derivative [Line Items]
Net Amounts of Assets (Liabilities) Presented	(1,324)
Gross Amounts Not Offset in Statements of Financial Condition, Liabilities	$ (1,324)